| |
Iohexol |
| |
Structural formula :
Molecular formula : C19H26I3N3O9
Molecualr weight : 821.14
CAS:66108-95-0
Packing : Outer package: Iron, plastic or fiber drum; Inner package: Polyethylene bag; Net weight: 25kg/drum
Standard : USP30-NF25
Item |
Specification |
1、 |
Characteristics |
White or off-white hygroscopic, odorless powder |
2、 |
Specific rotation[α]D20 |
-0.5° to +0.5° |
3、 |
Water |
≤4.0% |
4、 |
Heavy metals |
≤0.002% |
5、 |
Free aromatic amine |
≤0.05% |
6、 |
Free iodine |
The toluene layer shows no red or pink color |
7、 |
Free iodide |
≤0.001% |
8、 |
Ionic compounds
|
≤0.05% |
9、 |
Limit of methanol
Isopropyl alcohol
methoxyethanol |
≤0.005%
≤0.005%
≤0.002% |
10、 |
3-chloro-1,2-propanediol |
≤0.0025% |
11、 |
Related compounds |
O-alkylated compounds≤0.6%
Any individual impurity≤0.1%
The sum of all impurities≤0.3%
(other than O-alkylated compounds) |
12、 |
Assay |
98.0 - 102.0% |
|
| |
5-Amino-N,N`-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide |
| |
Structural formula :
Molecular formula : C14H18I3N3O6
Molecualr weight : 705.03
CAS:76801-93-9
Packing : Outer package: Iron, plastic or fiber drum;Inner package: Polyethylene bag; Net weight: 25kg/drum
Standard : In-house Standard
Item |
Specification |
1、 |
Characteristics |
White or yellowish powder |
2、 |
Loss on drying |
≤1.0% |
3、 |
Related substances |
Total impurity ≤2.0%
Individual impurity ≤1.0% |
4、 |
Assay(HPLC) |
≥98.0% |
|
| |
5-(Acetylamino),N`,N`-bis(2,3-dihydroxypropyl)-2,4-6-triiodo-1,3-benzenedi Carboxamide |
| |
Structural formula :
Molecular formula : C16H20I3N3O7
Molecualr weight : 747.05
CAS:n/f
Packing : Outer package: Iron, plastic or fiber drum;Inner package: Polyethylene bag; Net weight: 25kg/drum
Standard : In-house Standard
Item |
Specification |
1、 |
Characteristics |
White or off-white powder |
2、 |
Loss on drying |
≤1.0% |
3、 |
Melting point |
250.0 - 265.0℃
|
4、 |
Assay(HPLC) |
≥95.0% |
|
|
